Abstract
Currently, further research on the valorization of lignin is needed to shift biorefineries from the conceptual basis to the profitable practice. Providing global warming is a major concern as well, the use of lignin as the solely precursor to elaborate materials with Thermal Energy Storage (TES) applications is especially welcomed in the search for new sustainable solutions. To this end, the preparation of on-demand macroporous carbon foams from calcium lignosulfonate (CaLS) by pyrolysis is described herein, and their capability to microencapsulate phase change materials (PCMs) dedicated to the passive refrigeration of buildings by TES is further assessed as a proof of concept. The as-produced CaLS-based foams were found to be efficient containers for this purpose, displaying any appreciable leakage of PCMs. Furthermore, the thermal properties of the final materials were satisfactory as well, showing that the support does not affect the PCM performance negatively. Considering the process to produce such m...
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